Police in Japan nabbed a 74-year-old man they say committed over 250 burglaries during an 8-year crime spree — dressed as a ninja.

Osaka cops said they finally caught the infamous “Ninja of Heisei,” after the agile thief suspect- who dressed all in black with his face hidden- messed up when he accidentally showed part of his face to security cameras, AFP reported Wednesday.

Authorities identified the agile oldster as Mitsuaki Tanigawa in May and followed him for months before arresting him as he was robbing an electronics store.

“Investigators watched him doddering out from his house like any other old man during daytime. He then went to an abandoned apartment room where he changed and waited until it got dark,” an official told the outlet.

“When he came out in the dark, he was all in black… He did not take ordinary streets, squeezing through tight spaces between houses and running on the tops of walls,” he added.

The older man has been charged with 254 break-ins for thefts totaling in $260,000 over the past 8 years.

He allegedly told cops he only needed 10 minutes to sneak into a house and that he, “hated working and thought stealing was quicker.”

“If I were younger, I wouldn’t have been caught,” he reportedly said at the time of his arrest. “I’ll quit now as I’m 74 and old enough.”